Specifications

Type

Output Power

Power Band Width

Frequency Response

Total Hamonic Distortion

Inputs

Input Sensitivity/Impedance

Preamp OUT/Power Amp IN

Outputs (T)=Transformer (D)=Direct

Output Regulation (1 kHz)

Signal to Noise Ratio

(Band Pass 20 ~20,000 Hz) Tone Defeat SW ON

Tone Controls

Controls

Indicators

Protection

Connectors

Power Consumption

Temperature Range

Dimensions (W) x (H) x (D)

Weight

Color

Standard Accessories

Other Features

A-903MK2A-906MK2A-912MK2

8-channel mixer power amplifier

30W RMS

60W RMS

120WRMS

(D)20 ~20,000 Hz, 0.5% THD

(T)50 ~20,000 Hz, 0.5% THD

(D)20 ~20,000 Hz, ± 1 dB

(T)20 ~15,000 Hz, ± 1 dB

(T)20 ~20,000 Hz, +1 dB, -3 dB

0.02% at 1 kHz, rated output

Eight Input Ports : Each port accepts any input module.

One Bridging Input/Output

Input Port #1 to #8 : 100 mV/10k ohms

Bridging Input/Output: 100 mV/3.3k ohms

1000 mV into 600 ohms/1000 mV, 10k ohms

Main (T): 4 ohms, 25
& 70 volts, balanced	Main (T) : 8 ohms, 25 & 70 volts, balanced
Main (D): 8 ohms,	Main (D) : 4 ohms, unbalanced ,
unbalanced	Aux : 10k ohms, 1V
Aux : 10k ohms, 1V

(D)Less than 0.5 dB, no load to full load

(T)Less than 1.0 dB, no load to full load

Master volume min : 90 dB

Master volume max : 77 dB

Power amplifier only : 105 dB

Bass : ± 10 dB at 100 Hz, Treble : ± 10 dB at 10 kHz

8 Input gain controls		1 Master gain control
1	Bass tone control	1 Treble control
1	Power ON/OFF switch	1 Tone defeat switch

1Low-Cut switch (60 Hz, 6 dB/octave)

1Power LED, 1 Protect LED, 1 Signal LED, 1 Normal LED, 1 Peak LED Self-protection, with AC fuse (inside)

Input No.1 to No.8			Card-edge connector
Bridging, Mixer preamp. output			RCA phono jack
Power amp. input, Aux output			RCA phono jack
Output			Screw-terminal strip
Mute, Remote VR			Screw-terminal strip
AC power cord/plug			SJT, 3-prong type
AC outlet			3-pin grounding type
60 W		100W		180W
60 W		100W		180W
-10 °C ~ +60 "C [12°F~140°F]
420 x 99.1 x 318 mm	420 x 99.1 x 358 mm [16.5 X 3 . 9 X 14.1 in.]
[16.5 X 3 . 9 X 12.5 in.]	420 x 99.1 x 358 mm [16.5 X 3 . 9 X 14.1 in.]
[16.5 X 3 . 9 X 12.5 in.]
7.8 kg [17.2 Ib.]	9.6kg [21.2lb.]			11.4 kg [25.1 Ib.]

Black

4 Volume control covers (YA-920)

Output disconnected for approx. 5 seconds after switching power on.

* Specifications are subject to change without notice.

–10–

A-903MK2, A-906MK2, A-912MK2 specifications

TOA Electronics is renowned for its commitment to high-quality audio solutions, and the A-912MK2, A-906MK2, and A-903MK2 mixers exemplify this dedication through their innovative features and technologies. These mixers are ideal for various applications, including commercial spaces, educational institutions, and houses of worship.

The A-912MK2 is a powerful 120W amplifier that stands out due to its advanced signal processing capabilities. It features an 8-channel input, allowing for versatile connection options to accommodate various audio sources. The amplifier includes a built-in priority paging function that automatically lowers the music volume when a paging input is activated. This ensures that important announcements are heard clearly without compromise on background music levels. Additionally, the A-912MK2 incorporates a high-quality digital signal processor (DSP) that enhances audio quality and provides feedback suppression, ensuring clarity in vocal applications.

The A-906MK2, on the other hand, is a compact yet robust 60W mixer amplifier. One of its key features is the dual-zone output capability, making it perfect for complex audio environments where sound needs to be directed to multiple areas. This model offers multiple input options, including both microphone and line-level inputs, and features tone control for individualized sound shaping. The A-906MK2 is particularly appreciated for its ease of use, with intuitive controls that allow for quick adjustments on the fly.

Finally, the A-903MK2 rounds out the trio as a reliable 30W amplifier designed for smaller settings or intimate gatherings. It excels with its straightforward design, featuring a built-in MP3 player providing additional playback options directly from a USB stick or SD card. Like its counterparts, the A-903MK2 supports multiple input formats and includes essential features such as volume control, bass and treble adjustments, and phantom power for condenser microphones.

All three models embrace TOA’s philosophy of creating user-friendly products without sacrificing performance. They are crafted with durable materials for longevity and reliability in professional settings. Furthermore, these mixers are equipped with various safety features, including thermal protection and overload warning indicators, ensuring safe operation under varying conditions.

In summary, the A-912MK2, A-906MK2, and A-903MK2 by TOA Electronics are exceptional tools for delivering high-quality audio experiences across diverse environments. Their innovative features, reliability, and sound engineering make them excellent choices for professionals seeking performance without compromising on usability.